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目的探讨尿道内口漏斗形成对女性压力性尿失禁(SUI)的诊断价值。方法应用经会阴实时三维超声技术,观察90例女性SUI患者在静息及最大Valsalva两种状态下尿道内口漏斗有无形成,同时以239例正常女性作对照。以临床诊断作为诊断SUI的金标准,使用受试者工作(ROC)曲线评价尿道内口漏斗形成对SUI的诊断效能。结果静息状态下,SUI组及对照组均无尿道内口漏斗形成;最大Valsalva动作时SUI组的尿道内口漏斗形成数有50例,明显大于对照组25例,两组结果比较,差异有统计学意义。尿道内口漏斗形成诊断SUI的曲线下面积为0.725,其诊断SUI的灵敏度、特异度、阳性预测值、阴性预测值、准确度分别为55.6%、89.5%、66.7%、84.3%、80.2%。结论尿道内口漏斗形成对SUI有一定的诊断价值,可为临床提供诊断依据。
Objective To investigate the value of urethral funnel in the diagnosis of female stress urinary incontinence (SUI). Methods The perineal real-time three-dimensional ultrasound technique was used to observe the presence or absence of funnel in the mouth of urethra in 90 female SUI patients under resting and maximal Valsalva conditions. Meanwhile, 239 normal women were used as controls. Using clinical diagnosis as the gold standard for the diagnosis of SUI, the receiver operating characteristic (ROC) curve was used to evaluate the diagnostic efficacy of funnel formation in the urethra to SUI. Results In resting state, there was no funnel formation in the urethra in the SUI group and the control group. In the maximal Valsalva group, the number of funnel formation in the urethral orifice of SUI group was significantly higher than that in the control group (n = 25). There were significant differences between the two groups Statistical significance. The area under the curve of urethral funnel diagnosis SUI was 0.725. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of SUI in diagnosis of SUI were 55.6%, 89.5%, 66.7%, 84.3% and 80.2% respectively. Conclusion The formation of funnel in the urethra has certain diagnostic value for SUI, which can provide the basis for clinical diagnosis.